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• How to embed cover art into MP4 without errors ?

  7 mai 2020, par symonxd

  I want to add artwork to my MP4 file. How do I do this successfully / without errors ?
I've tried these methods with numerous MP4 files, none worked.
If you would like to replicate the errors / bugs, here are the sample files I've used for this question.

  



  I've tried the following :

  



  ---

  



  

  1. ffmpeg -i sample.mp4 -i sample.png -map 0 -map 1 -c copy -disposition:v:0 attached_pic sample_w_artwork.mp4
as stated by Lukas

  


  



  with this error :

  



  [mp4 @ 0000019ee4852280] Could not find tag for codec h264 in stream #0, codec not currently supported in container
Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument


  



  ffmpeg 4.2.2 (Windows build by Zeranoe)

  



  

  2. atomicparsley sample.mp4 --artwork sample.png --overWrite

  


  



  with no success ; AtomicParsley

  



  I get this message when executing the first time :

  



  Started writing to temp file.
 Progress: =============================================>100%|
 Finished writing to temp file.


  



  Executing the next (nth) time gives this :

  



  Updating metadata...   completed.


  



  

  3. Adding artwork through the GUI Tag Editor using both available versions : i686-w64 & x86_64-w64

  


  



  with no success ; it creates a sample.mp4.bak file, even though the software says that the operation was successful

  



  


  can't insert any more links, because I got too little rep apparently

  


  



  

  4. Mp3tag (mp3tag.de/en)

  


  



  with no success ; I can successfully add the image as a cover, but it's not visible in the File Explorer. After saving it says Saved tag in 1 of 1 files. The picture can been seen in Mp3tag though as if it's applied.

  



  

  5. Tag&Rename (softpointer.com)

  


  



  with no success ; same story as with Mp3tag, I can apply and it's visible in the app, but not in File Explorer.

  



  

  6. mp4v2 (https:// code.google.com/archive/p/mp4v2/downloads)

  


  



  mp4tags.exe -picture sample.png sample.mp4

  



  with no success ; it executes with no (error)message

  



  I found it on this thread

  



  (https:// forum.videohelp.com/threads/388025-How-to-set-the-thumbnail-of-a-video-clip).

  



  Have used the updated version which is the Windows build

  



  (https:// forum.doom9.org/attachment.php ?attachmentid=14314&d=1407985798).

  



  

  7. iTunes

  


  



  iTunes 12.10.6.2 (Microsoft Store version)

  



  iTunes doesn't load the file into the library. I can run it fine though in QuickTime Player.

  



  I didn't notice the 'Home Videos' tab. Now I can see it in there. I tried to apply the image, and it applied it only inside iTunes... So it's still not working for me.

  



  I tried to convert the MP4 to M4A and then adding it to iTunes. I was finally successfully able to change the cover and it was visible in File Explorer. But that's not what I want.

  



  I know for a fact that it's possible, because I've seen pictures on the Internet and YT and different threads where an answer is upvoted.

  



  

  8. tag

  


  



  https:// github.com/b4winckler/tag

  



  The description is : Simple command line audio tag editor... After having to install millions of libraries and a package manager I was stuck with the compilation of the software, followed all the steps, didn't work.

  



  I've also tried using MP4art as suggested by a comment on another issue about this. He didn't include a link to it so I went looking and found another issue about this. One comment recommended MP4art as well, with a link that's dead.

  



  ---

  



  I believe I've used some other methods as well but can't think of them right now. Will update if I recall.

  



  Any help is greatly appreciated.

  


• mfenc : Fall back to avctx->time_base if avctx->framerate isn't set

  20 mai 2020, par Martin Storsjö

  mfenc : Fall back to avctx->time_base if avctx->framerate isn't set
  The framerate field is the one users are supposed to set, but not
  
  all users might be setting it, so it might be good to fall back
  
  time_base in that case.
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DH] libavcodec/mfenc.c

• hevc : move SliceHeader and LongTermRPS back to hevcdec.h

  1er juin 2020, par Anton Khirnov

  hevc : move SliceHeader and LongTermRPS back to hevcdec.h
  They are no longer necessary there and have nothing to do with parameter
  
  sets, so do not belong in hevc_ps.h.
  This effectively reverts 4aaace8b25.
  

  • [DH] libavcodec/hevc_ps.h
  • [DH] libavcodec/hevcdec.h